Answer:
Step-by-step explanation:
Given that,
Cells are divided into two cell every 20mins, this implies that the half-life is 20mins
Initial population growth is 60cells
Growth rate r?
Population growth is modeled as
P(t) = Po•exp(rt)
Where,
Po is the initial growth at t= 0
Po= 60
P(t) is population at any time t.
Since the population doubles every 20mins(⅓hr)
Then, P(⅓) = 2×60 =120
Then, P(t) = 120cells
So, applying the formula
P(t) = Po•exp(rt)
120 = 60•exp(⅓r)
120/60 = exp(r/3)
2 = exp(r/3)
Take In of both sides
In(2) = r/3
Cross multiply
r = 3In(2)
r = 2.079 /hour
The growth rate is 2.079/hour.
Answer:
3 inches you are right
Step-by-step explanation:
This your answer hope i helped. :)
<span> The point lies one unit above the regression line. </span>
Answer:
6 + y
Step-by-step explanation:
Here, we want to write an algebraic expression to represent the situation
Mathematically, we want to add 6 and y
The algebraic expression will be;
6 + y
20% because 75 is the total price and 75 over 15 is 5 and 100 divided by 5 is 20